| # | Name | Location | Applications |
|---|---|---|---|
| 1. | B KROMNIGON | 🇸🇪 Gothenburg, Sweden | 1 |
| 2. | BK Resources, Inc. | 🇺🇸 Altamont, IL, United States | 2 |
| 3. | BK Resources, Inc. | 🇺🇸 Effingham, IL, United States | 1 |
| 4. | BKR IP Holdco LLC | 🇺🇸 Broomall, PA, United States | 2 |
| 5. | BKRZ GMBH | 🇩🇪 Bogen, Germany | 1 |